Licensed security companies in California
5,248 currently licensed · 576 not current · read September 14, 2026
These are California Department of Consumer Affairs, Bureau of Security and Investigative Services (BSIS) records for the Private Patrol Operator (PPO), as we read them on September 14, 2026. tessura did not issue or approve any of them, and most of these companies have no account with us. A company missing from this list is not necessarily unlicensed — check the regulator directly.
Check any record at the California Department of Consumer Affairs, Bureau of Security and Investigative Services (BSIS) lookup →Also checking the guards themselves? What they should hold in California →5,248 records
A TEAM SECURITY ("ATS")
Private Patrol Operator 16552 · LOS ANGELES · read September 14, 2026
Licensed
A V I R INC
Alarm Company Operator 5917 · PALM DESERT · read September 14, 2026
Licensed
A-1 SECURITY AND SCREENS, INC
Alarm Company Operator 6266 · CULVER CITY · read September 14, 2026
Licensed
A-A LOCK & ALARM INC
Alarm Company Operator 8140 · MENLO PARK · read September 14, 2026
Licensed
A-BELL ALARMS COMPANY
Alarm Company Operator 3875 · TEMECULA · read September 14, 2026
Licensed
A-SOURCE SECURITY SERVICES
Private Patrol Operator 120771 · RANCHO CUCAMONGA · read September 14, 2026
Licensed
A.C.E.S.S. SECURITY
Alarm Company Operator 7565 · MORENO VALLEY · read September 14, 2026
Licensed
A.J.I. SECURITY
Alarm Company Operator 7111 · SAN FERNANDO · read September 14, 2026
Licensed
A.L. SECURITY SERVICES
Alarm Company Operator 8198 · STOCKTON · read September 14, 2026
Licensed
A.S.C.
Private Patrol Operator 14157 · VAN NUYS · read September 14, 2026
Licensed
A.T. STILL UNIVERSITY OF HEALTH SCIENCES
Proprietary Private Security Officer Employer 1811 · KIRKSVILLE · read September 14, 2026
Licensed
A.T.A.C.H.S. INC.
Proprietary Private Security Officer Employer 1104 · SACRAMENTO · read September 14, 2026
Licensed
A&A SECURITY GROUP
Private Patrol Operator 121818 · WOODLAND HILLS · read September 14, 2026
Licensed
A&A SECURITY SERVICES
Alarm Company Operator 7027 · MADERA · read September 14, 2026
Licensed
A&B SECURITY
Alarm Company Operator 7414 · SACRAMENTO · read September 14, 2026
Licensed
A&E GREEN SOLUTIONS INC DBA RUSSIAN HILL CANNABIS CLUB
Proprietary Private Security Officer Employer 1447 · SAN FRANCISCO · read September 14, 2026
Licensed
A&F SECURITY SERVICE
Private Patrol Operator 120848 · SAN FRANCISCO · read September 14, 2026
Licensed
A&L SYSTEMS LLC
Alarm Company Operator 8267 · ONTARIO · read September 14, 2026
Licensed
A&RV INVESTMENT INC
Private Patrol Operator 121932 · EL MONTE · read September 14, 2026
Licensed
A&S SECURITY LLC
Alarm Company Operator 8156 · BAKERSFIELD · read September 14, 2026
Licensed
A+ ALARM SPECIALISTS
Alarm Company Operator 6666 · SOUTH SAN FRANCISCO · read September 14, 2026
Licensed
A1 PROTECTIVE SERVICES, INC.
Private Patrol Operator 15122 · SAN FRANCISCO · read September 14, 2026
Licensed
A1 SECURITY
Private Patrol Operator 120341 · BUENA PARK · read September 14, 2026
Licensed
A1 SECURITY & SCREENS, INC.
Private Patrol Operator 16006 · CULVER CITY · read September 14, 2026
Licensed
A2Z TECHNOLOGIES
Alarm Company Operator 5904 · BAKERSFIELD · read September 14, 2026
Licensed
A3 SMART HOME LP
Alarm Company Operator 7976 · WALNUT CREEK · read September 14, 2026
Licensed
AAA BURGLAR ALARM
Alarm Company Operator 5835 · LONG BEACH · read September 14, 2026
Licensed
AAA ELECTRONICS
Alarm Company Operator 7741 · WOODLAND HILLS · read September 14, 2026
Licensed
AAA PROTECTIVE SECURITY & CONSULTING GROUP INC
Private Patrol Operator 16865 · LOS ANGELES · read September 14, 2026
Licensed
AAA SECURITY INC
Private Patrol Operator 7470 · FARMERSVILLE · read September 14, 2026
Licensed
AABLE SECURITIES INC
Private Patrol Operator 13693 · LOS ANGELES · read September 14, 2026
Licensed
AAHS SAN PABLO, LLC
Proprietary Private Security Officer Employer 1414 · ALAMO · read September 14, 2026
Licensed
AALIYAH K9 SECURITY
Private Patrol Operator 17743 · SANTA ANA · read September 14, 2026
Licensed
AAM SERVICES
Private Patrol Operator 16679 · MIDDLETOWN · read September 14, 2026
Licensed
AARON BLACKBURN & ASSOCIATES
Private Patrol Operator 122376 · LONG BEACH · read September 14, 2026
Licensed
AASCEND PROTECTIVE SERVICES
Private Patrol Operator 121169 · VALLEJO · read September 14, 2026
Licensed
AAX ALARM
Alarm Company Operator 8142 · REDDING · read September 14, 2026
Licensed
AB CONSULTING & TRAINING SERVICE INC
Private Patrol Operator 122408 · SANTA CLARITA · read September 14, 2026
Licensed
ABA PROTECTION INC
Private Patrol Operator 18033 · SANTA CLARITA · read September 14, 2026
Licensed
ABAC SECURITY
Alarm Company Operator 5651 · TUJUNGA · read September 14, 2026
Licensed
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